/**
  ******************************************************************************
  * @file    I2S/SPI_I2S_Switch/stm32f10x_it.c 
  * @author  MCD Application Team
  * @version V3.5.0
  * @date    08-April-2011
  * @brief   Main Interrupt Service Routines.
  *          This file provides template for all exceptions handler and peripherals
  *          interrupt service routine.
  ******************************************************************************
  * @attention
  *
  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
  *
  * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_it.h"
#include "usart.h"

extern u32 TimingDelay;
extern u8 led1_flag;
extern u8 led2_flag;
extern u8 led3_flag;
extern u8 serial_flag;
extern u8 height_level;
extern u8 height[2];
extern u8 over_flag ;
extern u8 num;
u8 adc_flag = 1;
u8 led2_count = 0;
u8 led3_count = 0;
u8 i = 0;
char temp = 0;

/** @addtogroup STM32F10x_StdPeriph_Examples
  * @{
  */

/** @addtogroup I2S_SPI_I2S_Switch
  * @{
  */ 

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/******************************************************************************/
/*            Cortex-M3 Processor Exceptions Handlers                         */
/******************************************************************************/

/**
  * @brief  This function handles NMI exception.
  * @param  None
  * @retval None
  */
void NMI_Handler(void)
{
}

/**
  * @brief  This function handles Hard Fault exception.
  * @param  None
  * @retval None
  */
void HardFault_Handler(void)
{
  /* Go to infinite loop when Hard Fault exception occurs */
  while (1)
  {}
}

/**
  * @brief  This function handles Memory Manage exception.
  * @param  None
  * @retval None
  */
void MemManage_Handler(void)
{
  /* Go to infinite loop when Memory Manage exception occurs */
  while (1)
  {}
}

/**
  * @brief  This function handles Bus Fault exception.
  * @param  None
  * @retval None
  */
void BusFault_Handler(void)
{
  /* Go to infinite loop when Bus Fault exception occurs */
  while (1)
  {}
}

/**
  * @brief  This function handles Usage Fault exception.
  * @param  None
  * @retval None
  */
void UsageFault_Handler(void)
{
  /* Go to infinite loop when Usage Fault exception occurs */
  while (1)
  {}
}

/**
  * @brief  This function handles Debug Monitor exception.
  * @param  None
  * @retval None
  */
void DebugMon_Handler(void)
{
}

/**
  * @brief  This function handles SVCall exception.
  * @param  None
  * @retval None
  */
void SVC_Handler(void)
{
}

/**
  * @brief  This function handles PendSV_Handler exception.
  * @param  None
  * @retval None
  */
void PendSV_Handler(void)
{
}

/**
  * @brief  This function handles SysTick Handler.
  * @param  None
  * @retval None
  */
void SysTick_Handler(void)
{
	TimingDelay--;
}
void USART2_IRQHandler(void){
	if(USART_GetITStatus(USART2, USART_IT_RXNE)==SET){
		USART_ClearITPendingBit(USART2,USART_IT_RXNE);
		temp =  USART_ReceiveData(USART2);
		
		if(temp=='C'){
			serial_flag = usart_refer_now;
		}else if(temp == 'S'){
			serial_flag = usart_refer_set;
		}else {
			serial_flag = 1;
		}
		temp = 0;
	}
}
void TIM2_IRQHandler(void){
	if(TIM_GetITStatus(TIM2,TIM_IT_Update)==SET){
		TIM_ClearITPendingBit(TIM2,TIM_IT_Update);
		
		if(i == 4){
			led1_flag =! led1_flag;
			adc_flag = 0;
			i = 0;
		}else
			i++;
		if((serial_flag == usart_refer_set)||(serial_flag == usart_refer_now)){
			led3_flag = !led3_flag;
			if(led3_count == 9){
				led3_count = 0;
				serial_flag = 1;
			}else
				led3_count++;
		}
		if(over_flag == 0){
    			led2_flag =! led2_flag;
			if(led2_count==9){
				led2_count = 0;
				over_flag = 1;
			}else
				led2_count++;
		}
	}
}
/******************************************************************************/
/*                 STM32F10x Peripherals Interrupt Handlers                   */
/*  Add here the Interrupt Handler for the used peripheral(s) (PPP), for the  */
/*  available peripheral interrupt handler's name please refer to the startup */
/*  file (startup_stm32f10x_xx.s).                                            */
/******************************************************************************/

/**
  * @brief  This function handles PPP interrupt request.
  * @param  None
  * @retval None
  */
/*void PPP_Switch_IRQHandler(void)
{
}*/

/**
  * @}
  */ 

/**
  * @}
  */ 

/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
